Etalanetug
Based on 1 Customer Validation
Etalanetug (E2814) is a humanized high-affinity IgG1 antibody that targets tau protein and can cross the blood-brain barrier. Etalanetug inhibits the spread of pathological tau protein through high-affinity binding to the microtubule-binding region (MTBR). Etalanetug can be used in research related to Alzheimer's disease.
For research use only. We do not sell to patients.
- Purity: 99.857%
- CAS No.: 2690265-18-8
- Molecular Weight:146.3 kDa
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Human IgG1 kappa
Human
MAPT
Etalanetug (2 μg/mL) binds to recombinant human wild-type 2N4R tau protein with a high affinity of 88 pKd[2].
Etalanetug binds to recombinant human 2N3R tau protein in a dose-dependent manner, with slightly reduced affinity relative to 2N4R tau[2].
Etalanetug (8.3 μM; 30 min pre-incubation, 6 days aggregation) potently inhibits heparin-induced aggregation of both recombinant wild-type and P301S mutant 2N4R tau protein in vitro[2].
Etalanetug (0.3-10 μg; 48 h at 37 °C under 5% CO2) immunodepletes tau seeds (K18 fibrils and full-length P301S tau monomer) in a dose-dependent manner, reducing intracellular tau deposition in Lenti-X 293 T cells overexpressing P301S 0N4R tau[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Unconjugated
The product can be reconstituted/diluted with sterile PBS or saline.
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IgG1-kappa
ELISA, FACS, Functional assay
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Immobilized Fetal-tau/0N3R Protein, Human (His, solution, HY-P73618) can bind Etalanetug. The EC50 for this effect is 1.246 ng/mL. -
Flow cytometric analysis of 1X106 SH-SY5Y cells labeling Tau with Etalanetug (HY-P990995, red). Cells were fixed with 4% paraformaldehyde and permeabilised with 90% methanol. Then stained with the primary antibody at 1/200 for an hour at 4℃. AF488-conjugated Goat Anti-Human IgG H&L (AF488) (HY-P83776) was used as the secondary antibody at 1/1,000 dilution for 30 minutes at 4℃. Human IgG1 kappa Isotype Control (HY-P99001, blue) was used as the isotype control.
Chemical Information
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CAS No. 2690265-18-8
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Appearance Liquid
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Molecular Weight 146.3 kDa
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Color Colorless to light yellow
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SMILES
[Etalanetug]
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Synonyms
E2814
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Shipping
Shipping with dry ice.
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Formulation
Please refer to the lot-specific COA for specific buffer information.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
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Data Sheet (258 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Inhibitory Antibodies User Guide (603 KB)
References
[1]. Rawal S,et al. An Anti-tau Therapeutic Antibody Etalanetug (E2814): A Phase 1, First-in-human (FIH) Study of Single and Multiple Ascending Doses in Healthy Subjects. Alzheimer Dis Assoc Disord. 2025 Jul-Sep 01;39(3):151-157. [Content Brief]
[2]. Roberts M, et al. Pre-clinical characterisation of E2814, a high-affinity antibody targeting the microtubule-binding repeat domain of tau for passive immunotherapy in Alzheimer's disease. Acta Neuropathol Commun. 2020;8(1):13. Published 2020 Feb 4. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)